Improvement in tubes for seed-planters



J. C. HAINES.

Seed-Drill Teeth.

No. 18.843. I Patented Dec. 15. 1857.

RM PHOTO-LKTHU. CO. NY. (DSBURNE'S PROCEiS.)

UNITED STATES PATENT OFFICE.

JOSEPH 0. HAINES, OF DUBLIN, INDIANA.

IMPROVEMENT IN TUBES FOR SEED-PLANTERS.

Specification forming part of Letters Patent No. 18.843, dated December15, 1857.

To all whom it may concern:

Be it known that 1, Joseph 0. HAINES, of Dublin, Wayne county, Indiana,have invented a new and useful Improvement in Seed-Planters; and Ihereby declare the following to be afull and exact description thereof,reference being bad to the accompanyiugdrawing, making part of thisspecification.

My invention relates to a construction of the pipe leading from thefeed-hopper into the tooth, and technically known as the tube, whichadapts it, while yielding easily to the motion of the tooth, to preservefor the descending grain a uniform duct or passage kept automaticallyfree of dirt by the vibrations incident to its use. The necessaryflexibility of the tubes is at present sought to be provided for bycomposing them of leather, vulcanized indie-rubber, or painted canvas,either entireor in combination with a lower portion of tin. All thesevarieties are liable with use to become inefficient as grain-ducts,partly from the creasing and flattening of the tube where most subjectto flexure, and partlyfrom the lodgment and incrustation of dirt uponits inner Walls, which eflects are most active in a humid atmosphere.Leather and canvas tubes become permanently crimped and wrinkled, tinones dented and battered.

In the accompanying drawing, A is the chute that conducts from the seedbox or hopper through the frame F to the tube I.

H is the drill-tooth, secured by the drag-bar X and tackle K to theframein the customary manner.

The tube 1 is constructed of a close and slightly-tapering coil of wireattached by its base to the frame, and depending thence in aslightly-forward direction, so as to occupy the interior of thedrill-tooth H in the usual way. The wire of this tube may be round, asin the present illustration, or may be flattened and have chamt'ered andoverlapping edges. The extreme longitulinal flexibility of the tubecauses it toadapt itself with easy curves to the motions of the tooth,while the strength of the individual coils preserves the regularcontinuity of its passage substantially unchanged. The frequent andsudden deflections ofits axial curvatures by its contact with the toothact to slightly open the many interstices of the coil, and thuseffectually prevent the 10d gment and incrustation of dirt, whichis'wcll known to be one of the most serious drawbacks to the usefulnessof theseimportant implements. Atthe same time the flexibility is soevenly distributed throughout the length of the tube as to avoid suddencurves, which form obstructions, and also to prevent any oftheinterstices opening sufficiently wide to allow of the escape of seed.

The above-described tube possesses the important economical advantagesof less original cost and greater durability than any other known to me;but the most valuable of its features of usefulness is deemed to consistin its eminently effective self-cleansing property, an im portantelementof which is the sharp jarring produced by the continual opening andclosing of the numerous interstices.

I claim as new and of my invention herein In the describedcombination,with the tooth of a grain or seed drill, the tube orgrain-duct I, composed of a close coil of wire, constructed and appliedsubstantially in the manner set forth.

In testimony of which invention I hereunto set my hand.

JOSEPH (J. HAINES.

Attest:

GEO. H. KNIGHT, J AS. H. GRIDLEY.

